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Development of a Single Pulse Micro EDM System and to Manufacture Micro Spherical Probe used in Micro CMM Chih-Liang Chu1, a *, Hung-Chi Chen1 1Dept. of Mechanical Engineering, Southern Taiwan University of Science and Technology, Tainan, Taiwan acliang@mail.stust.edu.tw Keywords: Single pulse, Micro-EDM, Wire electro discharge grinding (WEDG) Abstract.
The current study uses tungsten carbide (WC) as the material for the stylus.
Sheu, "Multi-spherical probe machining by EDM Combining WEDG technology with one-pulse electro-discharge", Journal of Materials Processing Technology, 149, (2004) ,597-603
Shih, "Development of an On-Machine Micro Measuring Technique" Journal of the Chinese Society of Mechanical Engineers, Vol. 27, No. 5, (2006), 599-604
[4] Dong-Yea Sheu, Chung-Chieh Cheng "Assembling ball-ended styli for CMM's tactile probing heads on micro EDM" The International Journal of Advanced Manufacturing Technology, Volume 65, Issue 1-4, (2012), 485-492 .

The effects of friction coefficient on driving performance in traveling wave ultrasonic motor Sun Fengyan1, a, Wang Qingmei1,b and Qu Jianjun2,c 1 National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083,China 2Department of Mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China afysun@ustb.edu.cn, bqmwang@ustb.edu.cn, cthqjj@163.net Keywords: friction coefficient, friction material, traveling wave ultrasonic motor Abstract.
In recent years, many scholars have studied the effects of friction materials parameters, such as elastic modulus, thickness, hardness, friction coefficient, on the output characteristics of ultrasonic motor [1-6].
It is significance to design materials and improvement of motor performance. 2 Simulation and analysis 2.1 Visco-elastic contact model Though the structures of different kinds of TWUSM are different, their drive principles are the same.
Comparing with other common friction materials of TWUSM, it was proved that the motor with EK2 can get better running stability, higher output torque and longer lifetime.
International Journal of Non-Linear Mechanics, Vol. 38 (2003), P. 143-159 [4] J.L.

Faculty of Science and Techniques.
The design department sends to the production department all the technical data corresponding to each proposed concept (material, shape, tolerances and surface conditions).
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Chen, Multi-Objective Evaluation Method of Thermal Power Enterprise Cost Effective Research, Advanced Materials Research.

Vergauwen: Journal of Geochemical Exploration. 2001, 73(03), p131-153
Bailey: Quaternary Science Reviews. 2009, 28(15-16), p1392-1411
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China 2 Architecture and Civil Engineering School of Inner Mongolia University of Science and Technology, Inner Mongolia, Baotou 014010, P.R.
Journal of Constructional Steel Research, 61, 1332-1352, 2005
Journal of Construction Steel Research, 62,250-261, 2006
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Materials and Methods Inoculum preparation A. flavus aflatoxigenic strain CGMCC3.2890 was obtained from China General Microbiological Culture Collection Center (CGMCC).
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Foleiss researched that there is the influence of the temperature on fatigue strength under the long life symmetry cycle of many materials.
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Li: Journal of Mechanical Strength, Vol. 24, No.3,(2002), p. 450
Wang: Chinese Journal of Management Science, Vol. 16, No.4 (2008), p. 159
Wang: Journal of Shenyang Ligong University, Vol. 27, No.4 (2008), p. 84-86.

Introduction Concrete cracks easily to imperil the structure safety and normal use at a certain temperature as a brittle material with low tensile strength.
Journal of Hohai University（Natural Sciences）,2002,30(4):22_27
Journal of Hohai University（Natural Sciences）,2002,30(5):12_16
Chinese Journal of Computational Mechanics.2004, 21(3):338-342
Journal of Zhengzhou University (Engineering Science).2011,32(6):63-66

Acknowledgements This research is supported by the National Natural Science Foundation of China (Project approval number: 51235003).
Journal of Materials Processing Technology, 2001, 117(1): 183-192
(in Chinese) [3] Dong M, Tang Y Y, Dong Z F: Journal of Harbin Institute of Technology, 2003, 03:301-302.
(in Chinese) [4] Bao Q S, Wang Y T, Tang Y Y: Journal of Natural Science of Heilongjiang University, 1999, 04:32-35.
(in Chinese) [5] He Y X, Zhou Y F, Zhou J: Chinese Journal of Aeronautics, 2002, 02:135-139.

Internet technology has changed the original mode of production, social structures, and ways of thinking, which deconstruct material and spiritual foundation of the traditional ethics.
Journal of China University of Mining & Technology (Social Sciences) .
Journal of Zhejiang wangli university, Issue 2, vol 2.(2010).
Journal of Hebei youth administrative cadres college. issue 2.(2010).
Journal of Beijing Institute of Civil Engineering and Architecture vol 19 supplement (Social science), (2003).